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Article
Development of High Yielding Aromatic Rice Variety BRRI dhan70 for Wet Season of Bangladesh
Author(s)
Md. Abdul Kader, Tamal Lata Aditya, Ratna Rani Majumder, Tapas Kumer Hore and Al Amin
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DOI:10.17265/1934-7391/2018.05.001
Affiliation(s)
Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur 1701, Bangladesh
ABSTRACT
BRRI dhan70 is a new
aromatic, high yielding and extra-long slender grain containing transplanted
Aman rice variety which is an improvement over existing premium quality rice
BRRI dhan37. BRRI dhan70 has pleasingly passed in the proposed variety trial
conducted in the farmers’ field. As a result National Seed Board (NSB) approved
this variety for commercial cultivation in the wet season (T. Aman) of
Bangladesh in 2015. The important feature of BRRI dhan70 is the straw colored
extra-long slender, higher elongation ability and aroma of the cooked rice. The
growth duration of BRRI dhan70 is 130 days which is 10-15 days earlier growth
duration than BRRI dhan37. Thousand grain weight of the variety is 20 gm and it
has colored grain tip and pointed awn. The rice has 21.7% amylose content with
9.5% protein content. The special character of the variety is lodging
tolerance. It has long, erect deep green flag leaf. BRRI dhan70 can produce
4.8-5.0 t/ha yield with proper management which is approximately 1.0-1.35 t/ha
higher yield than BRRI dhan37. The exportable aromatic rice BRRI dhan70 is an
excellent variety for cultivating in the wet (T. Aman) season and farmers can
be benefited by the cultivation of BRRI dhan70.
KEYWORDS
Rice, extra-long-slender, aromatic, exportable, BRRI dhan70, wet season.
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